If you still aren't seeing new messages, verify that your client is online. Check your status bar for "Connected to Microsoft Exchange" message. If not, restart Outlook.
The e-mail display is called a 'Reading Pane' in Outlook. You can customize your view by clicking the View tab. Reading Pane is found in the Layout group. Three options are available for you to display your messages, right, below, or hidden. This setting applies to the current folder that is selected in your mailbox.